CN112226099A - Organic dye, backlight module, polarizer and display panel - Google Patents
Organic dye, backlight module, polarizer and display panel Download PDFInfo
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- CN112226099A CN112226099A CN202011080531.8A CN202011080531A CN112226099A CN 112226099 A CN112226099 A CN 112226099A CN 202011080531 A CN202011080531 A CN 202011080531A CN 112226099 A CN112226099 A CN 112226099A
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- organic dye
- backlight module
- light
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Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B47/00—Porphines; Azaporphines
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D487/00—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, not provided for by groups C07D451/00 - C07D477/00
- C07D487/22—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, not provided for by groups C07D451/00 - C07D477/00 in which the condensed system contains four or more hetero rings
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/04—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/003—Light absorbing elements
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/30—Polarising elements
- G02B5/3025—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state
- G02B5/3033—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid
- G02B5/3041—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid comprising multiple thin layers, e.g. multilayer stacks
- G02B5/305—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid comprising multiple thin layers, e.g. multilayer stacks including organic materials, e.g. polymeric layers
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
Landscapes
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Organic Chemistry (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Polarising Elements (AREA)
- Liquid Crystal (AREA)
Abstract
The invention discloses an organic dye, a backlight module, a display panel and a display device, wherein the organic dye comprises a porphyrazine complex organic matter, and the structural formula of the organic dye is as follows:
wherein M is a metal material. The organic dye, the backlight module, the polaroid, the display panel and the backlight moduleThe purifying layer is added in the group and the polarizer, wherein the material of the purifying layer is organic dye, and the organic dye adopts tetra-azaporphyrin complex organic dye, so that yellow orange light and green light in a white light source can be absorbed, the purity of the white light source is improved, and the color gamut of the display device is improved.
Description
Technical Field
The application relates to the field of luminescence, and in particular relates to an organic dye, a backlight module, a polarizer and a display panel.
Background
The development of display technology is also a pursuit of color rendering capability, and the color gamut is being promoted from sRGB of the first generation to DCI and even to bt.2020 of the next generation. At present, most color expressions of liquid crystal display are concentrated in the chromaticity specification of sRGB, the transition process to the DCI specification is slowly presented, the realization of the color expression of the DCI 99% specification is realized by means of quantum dots, common LED backlight can not reach the specification, and the quantum dots contain heavy metals, light conversion efficiency, cost and other factors, which always restrict the development bottleneck of the liquid crystal display to the DCI (99%) with higher color specification.
Disclosure of Invention
In order to solve the technical problems, the invention provides an organic dye, a backlight module, a polarizer and a display panel, which are used for solving the technical problem of low color gamut caused by low purity of quantum dots in the prior art.
The technical scheme for solving the technical problems is as follows: the invention provides an organic dye, which comprises organic matters of porphyrazine complexes, and the structural formula of the organic matters is as follows:
Further, the structures of R1-R8 comprise one or more of halogen elements, tertiary butyl or non-conjugated structures; or R1-R8 are conjugated structures connected through alkoxy and ester groups, the conjugated structures comprise heterocyclic compounds, and the heterocyclic compounds comprise five-membered and six-membered heterocyclic rings and benzo heterocyclic compounds.
The invention also provides a backlight module using the organic dye.
Furthermore, the backlight module is provided. Comprises an outer frame, a support frame and a support frame, wherein the outer frame comprises a bottom plate and a side plate vertical to the bottom plate; the light source is arranged in the outer frame and is opposite to the side plate; the purification layer is arranged on the surface of one side, away from the side plate, of the luminous source, and the material used by the purification layer comprises the organic dye; the light guide plate is arranged in the outer frame and comprises a light inlet side, and the light inlet side is opposite to the purification layer.
Furthermore, the mesh points are of a diamond structure, a circular structure or a polygonal structure.
Furthermore, the backlight module also comprises a fixing piece which is arranged in the outer frame, and one end of the fixing piece is fixed on the bottom plate; the circuit board is arranged on the surface of one side of the fixing piece, which is far away from the side plate, and the light emitting source is arranged on the circuit board; the rubber frame is arranged in the gap between the fixing piece and the side plate, and one end of the rubber frame extends to the edge of the light guide plate.
Further, the thickness of the purification layer is 500nm to 20000 nm.
Further, the luminous source is a quantum dot luminous source.
The invention also provides a polarizer, which comprises a purification layer arranged on the surface of one side of the bonding layer, which is far away from the first protection layer, wherein the material of the purification layer comprises the organic dye in the claim 1.
The invention also provides a display panel using the organic dye.
The organic dye, the backlight module, the polarizer and the display panel have the beneficial effects that the purifying layer is added in the backlight module and the polarizer, wherein the purifying layer is made of the organic dye, and the organic dye adopts the organic dye of the tetra-azaporphyrin complex, so that yellow orange light and cyan green light in a white light source can be absorbed, the purity of the white light source is improved, and the color gamut of the display device is improved.
Drawings
The technical solution and other advantages of the present application will become apparent from the detailed description of the embodiments of the present application with reference to the accompanying drawings.
Fig. 1 is a schematic view of a display panel in an embodiment.
FIG. 2 is a schematic diagram of a polarizer structure in an embodiment.
FIG. 3 is a schematic diagram of a backlight template in the embodiment.
Reference numbers in the figures:
a display panel 10; a backlight module 20;
an outer frame 210; a fixing member 220;
a circuit board 230; a light emitting source 240;
a purification layer 250, a light guide plate 260;
a rubber frame 270; a light-incident side 261;
a light exit side 262; mesh points 263;
a polarizer 11; stripping the protective layer 111;
an adhesive layer 112; a purification layer 113;
a first protective layer 114; a polarizer 115;
a second protective layer 116; a surface protection layer 117.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The following disclosure provides many different embodiments or examples for implementing different features of the application. In order to simplify the disclosure of the present application, specific example components and arrangements are described below. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, examples of various specific processes and materials are provided herein, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.
Examples
In this embodiment, the display device of the present invention includes a display panel 10 and a backlight module 20, wherein the display panel 10 is used for displaying a color image, and the backlight module is used for providing a stable light source.
As shown in fig. 1, the display panel 10 is a liquid crystal display panel, and includes a polarizer 11, as shown in fig. 2, wherein the polarizer 11 includes a peeling protective layer 111, an adhesive layer 112, a purification layer 113, a first protective layer 114, a polarizer 115, a second protective layer 116, and a surface protective layer 117.
The peeling protective layer 111 is connected with the purification layer 113 through the adhesive layer 112, and the protective film mainly prevents the purification layer 113 from being damaged in the process; meanwhile, the outer surface of the stripping protective layer 111 has special effects of antifouling, antistatic and the like.
The purification layer 113 is used to absorb non-pure light, such as cyan, yellow and orange, irradiated into the polarizer 11, specifically, the material of the purification layer 113 is an organic dye, and the organic dye is a porphyrazine complex organic dye, and has a chemical structural formula:
Wherein the structures of R1-R8 can be one or more of halogen atoms (F, Cl, Br) or carbon nitrogen chains.
Wherein the structures of R1-R8 can be tert-butyl.
Wherein the structures of R1-R8 may be nonconjugated structures, such as: linear alkanes, or branched alkanes; or a linear or branched alkane which is an alkoxy group; or a chain containing an ester group; r can also be F substituted alkane derivatives, the length range of the carbon chain can be 1-40 and the like, and the carbon chain can be one structure or the combination of a plurality of structures.
The structures of R1 to R8 may be conjugated structures in which alkoxy groups and ester groups are bonded to each other, or the conjugated structures may be heterocyclic ring-containing compounds, such as five-membered and six-membered heterocyclic rings and benzo-heterocyclic compounds. Five-membered heterocyclic compound: furan, thiophene, pyrrole, thiazole, imidazole, etc.; a six-membered heterocyclic compound: pyridine, pyrazine, pyrimidine, pyridazine, etc. and fused ring heterocyclic compounds: indole, quinoline, pteridine, acridine, and the like.
The porphyrazine complex organic dye can absorb cyan orange light and yellow orange light in light, and can absorb yellow orange light with visible light range of 560-610 nm, so that the purity of the light is improved after passing through the purification layer 113, and the color gamut of the display panel 10 is improved.
The first protective layer 114 can protect the polarizer 115 from external damage, glare, scratch, pollution, etc.; the main component of the first protective layer 114 is 100% polyethylene terephthalate, and the thickness thereof is 20-120 um. Or the substrate is 100% of polyethylene terephthalate, the surface of the substrate is provided with a surface treatment layer (the thickness of the treatment layer is 1-7 um, the treatment layer is composed of 1-5% of silicon dioxide and 95-99% of acylate, and the percentage is mass fraction), or the substrate can be a 100% acrylic film or a 100% acrylic film + the surface treatment layer positioned on the surface of the film (the thickness is 1-7 um, 1-5% of silicon dioxide + 95-99% of acylate).
The polarized light 115 is made by the process technology of dyeing, extending and drying PVA original film, and the unpolarized light becomes polarized light by the absorption of I3-I5-to the light, thereby realizing the function of controlling the light path; the polarizing sublayer mainly comprises more than 99% of polyvinyl alcohol film and iodine dyeing substances such as I3-, I5-and the like (the percentage is mass percentage) attached on the film.
The second protection layer 116 is disposed on a side surface of the polarizer 115 away from the first protection layer 114, the second protection layer 116 mainly protects the polarizer 115 from external damage and prevents the polarizer 11 from shrinking, and in addition, the second protection layer 116 and the first protection layer 114 may be endowed with optical characteristics of phase difference to improve the viewing angle of the display panel 10, and the main component of the second protection layer 116 may be one or more of cellulose triacetate, PMMA, and COP.
The surface protection layer 117 has excellent light transmission performance, light transmittance of 89%, good release property, easy peeling from the adhesive material, and no undesirable phenomena such as PSA falling off and earthworm marks; the surface protection layer 117 is mainly made of PET, and has excellent heat resistance and strong deformation resistance. In this embodiment, the main component of the surface protection layer 117 is a PET component, and a silicone release agent is coated on one side of the PET, the thickness of the release agent is approximately below 500nm, and the thickness of the surface protection layer 117 is between 30um and 60 um.
In this embodiment, the purification layer 113 is disposed between the bonding layer 112 and the first protection layer 114, and in other preferred embodiments of the present invention, the purification layer 113 may also be disposed between any other two layers of the polarizer 11, or may also be disposed on any side surface of the polarizer 11.
As shown in fig. 3, in the present embodiment, the backlight module 20 includes a frame 210, a fixing member 220, a circuit board 230, a light source 240, a purification layer 250, a light guide plate 260, and a plastic frame 270.
The outer frame 210 is a metal outer frame, and includes a bottom plate and a side plate perpendicular to the bottom plate, wherein the bottom plate and the side plate enclose a cavity for accommodating other films.
The fixing member 220 is disposed inside the outer frame 210, i.e. in the cavity, one end of the fixing member is fixed on the bottom plate, the other end of the fixing member is disposed opposite to the side plate, and the fixing member 220 is an aluminum extrusion for mounting and fixing the circuit board 230 and the light source 240.
The circuit board 230 is disposed on a surface of the fixing member 220 opposite to the side plate, and has a plurality of circuit traces thereon for transmitting electrical signals.
The light source 240 is disposed on a side surface of the circuit board 230 away from the fixing element 220, in this embodiment, the light source 240 is a quantum dot light source, and the light source 240 can emit white light, but the purity of light finally emitted by the backlight module 20 is not sufficient due to the green light and yellow orange light doped in the white light.
In this embodiment, a purifying layer 250 is disposed on a surface of the light source 240 away from the circuit board 230, wherein the purifying layer 250 is made of an organic dye, the organic dye is a porphyrazine complex organic dye, and a chemical structural formula of the organic dye is as follows:
Wherein the structures of R1-R8 can be one or more of halogen atoms (F, Cl, Br) or carbon nitrogen chains.
Wherein the structures of R1-R8 can be tert-butyl.
Wherein the structures of R1-R8 may be nonconjugated structures, such as: linear alkanes, or branched alkanes; or a linear or branched alkane which is an alkoxy group; or a chain containing an ester group; r can also be F substituted alkane derivatives, the length range of the carbon chain can be 1-40 and the like, and the carbon chain can be one structure or the combination of a plurality of structures.
The structures of R1 to R8 may be conjugated structures in which alkoxy groups and ester groups are bonded to each other, or the conjugated structures may be heterocyclic ring-containing compounds, such as five-membered and six-membered heterocyclic rings and benzo-heterocyclic compounds. Five-membered heterocyclic compound: furan, thiophene, pyrrole, thiazole, imidazole, etc.; a six-membered heterocyclic compound: pyridine, pyrazine, pyrimidine, pyridazine, etc. and fused ring heterocyclic compounds: indole, quinoline, pteridine, acridine, and the like.
The porphyrazine complex organic dye can absorb green orange light and yellow orange light in light, and can absorb yellow orange light with visible light range of 560-610 nm, so that the purity of the light is improved after passing through the purification layer 250, and the color gamut of the backlight module 20 is improved.
The light guide plate 260 is disposed on a side of the purification layer 250 away from the light source 240, specifically, the light guide plate 260 includes an incident side 261 and an emergent side 262, the emergent side 262 faces the purification layer 250, and light enters the light guide plate 260 through the incident side 261 after being purified by the purification layer 250, so as to realize conversion from a point light source to a surface light source.
The light exit side 262 is disposed on a surface of the light guide plate 160 opposite to the bottom plate, and after entering the light guide plate 160, the light is reflected by the light guide plate 260 and then exits through the light exit side 262. since the refractive index of the light guide plate 260 is higher than 1.49, the light will be totally reflected in the light guide plate 260. in order to destroy the total reflection phenomenon and enhance the light exit rate of the light guide plate 260, a plurality of dots 263 are disposed on a side of the light guide plate 260 close to the bottom plate, and the dots 263 are made of white ink, so that the light irradiated onto the light guide ink dots 303 can be diffused in a larger angle, thereby "breaking" the total reflection of the light, "solving the problem of" backlight shadow "caused by the limited angle of the light entering the light guide plate, that is, the problem of" backlight shadow "of the backlight module 20 is solved.
The plastic frame 270 is disposed between the fixing member 220 and the side plate to block light and prevent light from leaking out of the light guide plate 260.
The organic dye, the backlight module, the display panel and the display device have the advantages that the purifying layer is added into the backlight module and/or the display panel of the display device, the material of the purifying layer is the organic dye, the organic dye is a tetraazaporphyrin complex organic dye, and yellow orange light and cyan green light in a white light source can be absorbed, so that the purity of the white light source is improved, and the color gamut of the display device is improved.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
The principle and the implementation of the present application are explained by applying specific examples, and the above description of the embodiments is only used to help understanding the technical solution and the core idea of the present application; those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the present disclosure as defined by the appended claims.
Claims (10)
1. An organic dye, comprising
The structural formula of the organic matter of the porphyrazine complex is as follows:
2. The organic dye according to claim 1,
wherein the structures of R1-R8 comprise one or more of halogen elements, tert-butyl or non-conjugated structures; or
R1-R8 are conjugated structures connected through alkoxy and ester groups, the conjugated structures comprise heterocyclic compounds, and the heterocyclic compounds comprise five-membered heterocyclic compounds, six-membered heterocyclic compounds and benzo heterocyclic compounds.
3. A backlight module using the organic dye as claimed in claim 1.
4. The backlight module of claim 3, comprising
The outer frame comprises a bottom plate and a side plate vertical to the bottom plate;
the light source is arranged in the outer frame and is opposite to the side plate;
the purification layer is arranged on the surface of one side, away from the side plate, of the luminous source, and the material used by the purification layer comprises the organic dye;
the light guide plate is arranged in the outer frame and comprises a light inlet side, and the light inlet side is opposite to the purification layer.
5. The backlight module according to claim 3,
the mesh points are of a diamond structure, a circular structure or a polygonal structure.
6. The backlight module of claim 3, further comprising
The fixing piece is arranged in the outer frame, and one end of the fixing piece is fixed on the bottom plate;
the circuit board is arranged on the surface of one side of the fixing piece, which is far away from the side plate, and the light emitting source is arranged on the circuit board;
the rubber frame is arranged in the gap between the fixing piece and the side plate, and one end of the rubber frame extends to the edge of the light guide plate.
7. The backlight module according to claim 3,
the thickness of the purification layer is 500 nm-20000 nm.
8. The backlight module according to claim 3,
the luminous source is a quantum dot luminous source.
9. A polarizer, comprising
A purification layer disposed on a surface of the adhesive layer away from the first protective layer, wherein a material of the purification layer comprises the organic dye according to claim 1.
10. A display panel using the organic dye as claimed in claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011080531.8A CN112226099A (en) | 2020-10-10 | 2020-10-10 | Organic dye, backlight module, polarizer and display panel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011080531.8A CN112226099A (en) | 2020-10-10 | 2020-10-10 | Organic dye, backlight module, polarizer and display panel |
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| JPH01111015A (en) * | 1987-10-23 | 1989-04-27 | Teijin Ltd | Electrically conductive composite fiber |
| CN101581809A (en) * | 2009-06-12 | 2009-11-18 | 中国航空工业第一集团公司北京航空材料研究院 | Selective light-absorption nano-film for PDP displays, and preparation method thereof |
| CN103052904A (en) * | 2010-08-12 | 2013-04-17 | 三井化学株式会社 | Plastic polarizing lens, method for producing same, and polarizing film |
| CN110908029A (en) * | 2019-11-14 | 2020-03-24 | Tcl华星光电技术有限公司 | Light purification layer, side income formula backlight unit and polaroid |
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2020
- 2020-10-10 CN CN202011080531.8A patent/CN112226099A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01111015A (en) * | 1987-10-23 | 1989-04-27 | Teijin Ltd | Electrically conductive composite fiber |
| CN101581809A (en) * | 2009-06-12 | 2009-11-18 | 中国航空工业第一集团公司北京航空材料研究院 | Selective light-absorption nano-film for PDP displays, and preparation method thereof |
| CN103052904A (en) * | 2010-08-12 | 2013-04-17 | 三井化学株式会社 | Plastic polarizing lens, method for producing same, and polarizing film |
| CN110908029A (en) * | 2019-11-14 | 2020-03-24 | Tcl华星光电技术有限公司 | Light purification layer, side income formula backlight unit and polaroid |
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